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Monitors & detections guides
Build a useful watch for your HTTP endpoints, APIs, TLS certificates, TCP ports, ICMP ping and WebSocket connections. Choose what a healthy response means, understand failed checks, plan maintenance and use detection history to see what changed.
A good place to start: your first monitor · plans & billing
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Monitors & detections
35 guides
Give IPv4 and IPv6 their own lookout
Choose an address family for endpoint checks and understand what each result means.
Give a public host a gentle ping
Watch whether a public IPv4 or IPv6 host replies to ICMP, with clear limits and the same familiar incident alerts.
Keep a TCP service on watch
Check whether a public hostname and port accepts a connection, without logging in or sending application data.
Keep DNS records on the right path
Watch public DNS records for missing or unexpected values, with the same calm incident alerts as your other monitors.
Give domain renewal a little notice
Watch registry expiry dates, understand unknown results and give your team time to review renewal.
Keep scheduled jobs on watch
Let backups, cron jobs and background tasks report successful completion, and hear when a ping is missing.
Give TLS certificates an early heads-up
Watch certificate trust, hostname and expiry before renewal becomes urgent.
Keep watch on a WebSocket connection
Check a public WebSocket endpoint, optionally send a message and verify its first response.
HTTP monitoring errors: find the next useful clue
Understand 502, 503, 504 and other failed checks, distinguish response errors from connection failures, and investigate without hiding the signal.
Design API health checks that tell you something useful
Choose a safe health endpoint, combine HTTP and JSON response checks, and test unhealthy cases so a 200 response does not hide a broken dependency.
Give a monitor its first watch
Choose a target, check interval and check settings.
Keep a growing nest tidy
Search by name and use groups, tags and bulk actions.
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